Results 31 to 40 of about 872 (116)

Magnitude of WBV Affecting the Tractor with a Timber Trailer Operator During Individual Timber Forwarding Operations

South-East European Forestry
The study deals with measuring operator’s whole-body vibrations (WBV) at work with the tractor with a timber trailer. The research was done directly at the workplace during the production stage of timber forwarding.
David Sláma, Luboš Staněk, Václav Mergl   +2 more
doaj   +1 more source

Impacts of Fairness Concern and Non-Linear Production Cost on Investment Strategy for Blockchain-Based Shipping Supply Chain

Systems
In recent years, blockchain has been increasingly used in shipping supply chains, enabling supply chain members to track the production process of shipping products, thereby increasing visibility for firms and boosting their competitiveness.
Jiantuan Hu, Xiaoli Tang, Yuanling Wang, Chutian Ma, Lin Chen   +4 more
doaj   +1 more source

Soil compaction caused by harvest and logging operations in eucalyptus forests in coarse-textured soils from northeastern Brazil

Ciência e Agrotecnologia
Planted forests occupy more than 6.5 million ha in Brazil, where harvest and logging operations are performed with increasingly heavier machinery, increasing the risk of soil compaction. Soil compaction can be avoided if soil load bearing capacity is not
Maria Luiza de Carvalho Andrade, Diego Tassinari, Moacir de Souza Dias Junior, Ricardo Previdente Martins, Wellington Willian Rocha, Zélio Resende de Souza   +5 more
doaj   +1 more source

Application of harvester technologies of timber logging in the process-oriented environment

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2009
Harvester technologies of timber logging currently represent the high spot of technologies used in forestry for timber harvesting and forwarding. A typical feature of the “harvester– forwarder” combination is production rate, which is many times higher ...
Pavel Máchal, Luboš Bartoš
doaj   +1 more source

Vehicle density based multihop broadcast protocol in VANET

Tongxin xuebao, 2016
In vehicular ad hoc networks (VANET), the medium access control (MAC) protocol was of crucial importance to provide time-critical multihop broadcast. Contemporary multihop broadcast protocols in VANET usually choose the farthest node in broadcast range ...
Jia-wei HUANG, Shao-hua ZHONG, Lian-hai LIU, Jian-xin WANG   +3 more
doaj   +2 more sources

Análise técnica e econômica do forwarder em três subsistemas de colheita de florestas de eucalipto Technical and economic analysis of a forwarder under three eucalyptus forest harvest subsystems

Revista Árvore, 2004
O objetivo deste trabalho foi avaliar técnica e economicamente o forwarder em três subsistemas de colheita em florestas de eucalipto. A análise técnica englobou um estudo de tempos e movimentos e de produtividade.
Luciano José Minette, Fábio Murilo Tieghi Moreira, Amaury Paulo de Souza, Carlos Cardoso Machado, Kátia Regina Silva   +4 more
doaj   +1 more source

PROBLEM OF COMMON TRANSPORT SYSTEM ORGANIZATION

Современные информационные технологии и IT-образование, 2018
The paper discusses the problem of common transport system creation from system-wide positions. Much attention is focused on two aspects – active self-maintenance in the environment with disorganization and dual nature of an organized object – as a ...
Pyotr A. Kozlov, Nikolay A. Tushin, Vitaliy S. Kolokolnikov   +2 more
doaj   +1 more source

Productivity of a John Deere Harvester Unit in Deciduous Stands

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2014
The aim of the presented paper was to determine the productivity of a John Deere 1070D harvester in deciduous coppices of Quercus petraea and Fagus sylvatica, in thinnings over 50 years of age.
Jozef Slugeň, Pavel Peniaško, Valéria Messingerová, Martin Jankovský   +3 more
doaj   +1 more source

Distance driven and driving speed when forwarding during final felling in Central Sweden

Journal of Forest Science, 2019
Factors affecting forwarding work are interesting because they can be used to better optimize forwarding routes and to predict costs. The main objective of this study was to investigate the association between driving speed and driving distance when ...
Simon Berg, Back Tomas Ersson, Jussi Manner   +2 more
doaj   +1 more source

Beating the Fault-Tolerance Bound and Security Loopholes for Byzantine Agreement with a Quantum Solution. [PDF]

Research (Wash D C), 2023
Weng CX, Gao RQ, Bao Y, Li BH, Liu WB, Xie YM, Lu YS, Yin HL, Chen ZB.   +8 more
europepmc   +1 more source